English dictionary, thesaurus, translations & etymology

serious

22 synonyms and 5 antonyms for serious, ranked by how commonly they're used.

Adj — Not joking or humorous; solemn in manner.

Synonyms for serious

austere frightful demure grave earnest grievous lack-laughter thoughtful sad sage saturnine sedate solemn solemncholy sober somber sombre staid stern sweer weightsome weighty

Antonyms for serious

trifling unimportant jesting gaudy witty

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Synonyms and antonyms from Wiktionary, CC BY-SA.